Oxxford suits - completely hand-stitched except for the main seams???

Hello all, I'm new to the forum, so if my question seems uninformed... In researching the purchase of a Oxxford's Highest Quality, Type A suit, I came across an article on Forbes.com titled the "Anatomy of a well-cut suit," which had a quote in it by a guy named Joe Lupo, the owner of Visual Therapy, a luxury lifestyle consulting firm. Anyway, Lupo recommends buying Oxxford suits, which he states are completely hand-stitched EXCEPT for the main seams. What are the main seams? Is that observation correct? I thought Oxxford's HQ line is completely hand sewn. Would anyone care to clarify? Thanks.